Answer:
5 x 7 array
Explanation:
Lane makes a 4 X 7 array and a 1 X 7 array.
Note that the second number 7 is the same in both cases.
Therefore, the array size that he can make using all of the counters is:
[tex]\begin{gathered} (4\times7)+(1\times7) \\ =(4+1)\times7 \\ =5\times7 \end{gathered}[/tex]Lane can make a 5 x 7 array using all of the counters.
